[petsc-users] vfork problems compiling on Windows

Hi, I already reported this problem before. I get vfork problem on Windows and one or more subfolders break during compilation resulting in an incomplete target library. I was advised before to go to the failed subfolder and run make in there. That works, but now the question is how do I re-make the final library and only the library. If I go back to the petssc root folder and issue "make" the whole thing gets rebuilt from scratch, ignoring what has been so far built. This not only takes ages on Windows, but also occasionally breaks due to the vfork problem in another subfolder. How can I trigger continuing the build in this case? Thanks Dominik